1 files changed, 55 insertions, 0 deletions
diff --git a/DTCallbackScopedVars.c b/DTCallbackScopedVars.c
new file mode 100644
index 0000000..75eb5e2
--- /dev/null
+++ b/DTCallbackScopedVars.c
@@ -0,0 +1,55 @@
+#strict 2
+
+static const ScopedVar_Callback = 4;
+
+global func CallbackVar(callback) { return [ScopedVar_Callback, callback]; }
+
+global func &CustomScopedVar(array variable)
+{
+	if(variable[0] == ScopedVar_Callback)
+	{
+		return CallA(variable[1], []);
+	}
+	else
+	{
+		return _inherited(variable, ...);
+	}
+}
+
+static const BindCallback_Bind_ScopedVar = -6;
+
+global func Bind_Var(array scopedVar) { return [BindCallback_Bind_ScopedVar, scopedVar]; }
+
+global func BindCustomArgs(array bind, array args, bool safe)
+{
+	if(bind[0] == BindCallback_Bind_ScopedVar)
+	{
+		return ScopedVar(bind[1]);
+	}
+	else
+	{
+		return _inherited(bind, args, safe, ...);
+	}
+}
+
+global func CheckCustomScopedVar(array variable)
+{
+	if(GetType(variable) == C4V_Array && variable[0] == ScopedVar_Callback && GetLength(variable) == 2)
+	{
+		if(CheckCallback(variable[1]))
+		{
+			return true;
+		}
+	}
+
+	return _inherited(variable, ...);
+}
+
+global func CheckBindCallbackCustomBinding(binding)
+{
+	if(GetType(binding) == C4V_Array && GetLength(binding) == 2 && binding[0] == BindCallback_Bind_ScopedVar && CheckScopedVar(binding[1]))
+	{
+		return true;
+	}
+	return _inherited(binding, ...);
+}